7.3 Enabling Background Consistency Check

When background consistency check is enabled, maxView Storage Manager continually and automatically checks your logical drives for bad or inconsistent data, and then fixes any problems. Enabling consistency check ensures that you can recover data if a logical drive fails. The scanning process checks physical drives in fault-tolerant logical drives for bad sectors. It also verifies the consistency of parity data, if applicable. The available modes are High, Disable, and Idle. On selecting the Idle mode, you must also specify a delay value and parallel scan count.

When enabled, the consistency check will perform a background check on logical drives every 14 days from the time the last check was completed. However, the factors that may extend this time duration includes the priority mode, parallel count, number of logical devices, and host I/O activity.

To enable or disable background consistency check:

  1. In the Enterprise View, select a controller.
  2. On the ribbon, in the Controller group, click Set Properties.

    The Set Properties window opens.

  3. Click the Data Protection tab.
  4. In Consistency Check Priority drop-down list, select High, Disabled, or Idle.
  5. If you selected the Idle mode, enter the consistency check delay (in seconds) and parallel consistency check count:
    • Consistency Check Delay—Amount of time the controller must be inactive before the consistency check is started. Enter a value from 0-30. A 0 value disables the scan. The default value is 3.
    • Parallel Consistency Check Count—Number of logical drives on which the controller will perform the consistency check in parallel.
  6. Click OK.